Decade Resistance Box

Easily control circuit resistance The Decade Resistance Box is an array of precision variable resistors used to control resistance in DC circuits for physics and electronics experiments. With four smooth-turning decade dials, resistance can be set from 1 Ω to 9999 Ω in 1 Ω increments, making it easy to fine-tune experiments and collect reliable quantitative data. Built with 1% tolerance resistors, 4 mm safety sockets, and classroom-ready durability, this resistance box transforms abstract circuit theory into hands-on discovery. Why Teachers Love the Decade Resistance Box Precise, Repeatable Control – Four decade dials allow students to quickly select exact resistance values in 1 Ω steps, without swapping individual resistors. Supports Core Electricity Labs – Perfect for verifying Ohm’s Law, investigating RC time constants, building potential dividers, and designing op-amp filter circuits. Built for Real Classrooms – 1% tolerance resistors ensure accurate results, while standard 4 mm sockets integrate seamlessly into student circuit setups.